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sound
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References & Edit History Related Topics
Images & Videos
Watch a suspended vibrating spring to learn about the propagation of sound waves
graphic representations of a sound wave
How to measure a wave: frequency and period explained
Understanding frequency and amplitude in sound
Huygens' principle acoustic filters typically used in air-handling systems first three harmonic standing waves in a stretched string first 10 notes in the overtone series of G2 first three harmonic standing waves in open and closed tubes Helmholtz resonator
For Students
sound summary
Quizzes
Italian-born physicist Dr. Enrico Fermi draws a diagram at a blackboard with mathematical equations. circa 1950.
Physics and Natural Law
Italian physicist Guglielmo Marconi at work in the wireless room of his yacht Electra, c. 1920.
All About Physics Quiz
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Nuthatch. nuthatch and creeper. bird. Red-breasted Nuthatch (Sitta canadensis) a small songbird in mid-winter. Near Fairmont Hot Springs, BC, Canada.
How Do Birds Hear?
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Leonardo da Vinci (1452-1519), Italian Renaissance painter from Florence. Engraving by Cosomo Colombini (d. 1812) after a Leonardo self portrait. Ca. 1500.
10 Famous Artworks by Leonardo da Vinci
Plato (left) and Aristotle, detail from School of Athens, fresco by Raphael, 1508-11; in the Stanza della Segnatura, the Vatican. Plato points to the heavens and the realm of Forms, Aristotle to the earth and the realm of things.
Plato and Aristotle: How Do They Differ?
Baseball laying in the grass. Homepage blog 2010, arts and entertainment, history and society, sports and games athletics
10 Greatest Baseball Players of All Time
Saint Lucia Day. Young girl wears Lucia crown (tinsel halo) with candles. Holds Saint Lucia Day currant laced saffron buns (lussekatter or Lucia's cats). Observed December 13 honor virgin martyr Santa Lucia (St. Lucy). Luciadagen, Christmas, Sweden
7 Winter Solstice Celebrations From Around the World
Aphrodite. Greek mythology. Sculpture. Aphrodite is the Greek goddess of love and beauty.
12 Greek Gods and Goddesses
Adolf Hitler (Nazi, nazism, German leader).
9 Things You Might Not Know About Adolf Hitler
Close up of books. Stack of books, pile of books, literature, reading. Homepage 2010, arts and entertainment, history and society
12 Novels Considered the “Greatest Book Ever Written”

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Videos

Watch a suspended vibrating spring to learn about the propagation of sound waves
Learn about the propagation of sound waves from a point source by observing the motion...
Video: Encyclopædia Britannica, Inc.
How to measure a wave: frequency and period explained
Overview of the relationship between frequency and period in waves.
Video: Encyclopædia Britannica, Inc.
Understanding frequency and amplitude in sound
The frequency and amplitude of sound waves as registered on an oscilloscope.
Video: Encyclopædia Britannica, Inc.
How does the McGurk effect trick your brain?
The McGurk effect illustrates how visual cues can have an impact on our perception...
Video: Encyclopædia Britannica, Inc.
Understanding wave interference through sound experiments
Overview of interference using the example of sound waves.
Video: Encyclopædia Britannica, Inc.
Understand the science of hearing and how humans and other mammals perceive sound
How humans and other mammals perceive sound.
Video: © World Science Festival (A Britannica Publishing Partner)
Learn how researchers successfully demonstrated to separate the cancerous cells from the blood using sound waves
Using sound waves to detect rare cancer cells in the blood.
Video: © Massachusetts Institute of Technology (A Britannica Publishing Partner)

Images

graphic representations of a sound wave
Graphic representations of a sound wave: (A) air at equilibrium, in the absence of...
Encyclopædia Britannica, Inc.
Huygens' principle
Originating along the fronts of (A) circular waves and (B) plane waves, wavelets...
Encyclopædia Britannica, Inc.
acoustic filters typically used in air-handling systems
Figure 3: Acoustic filters typically used in air-handling systems. (A) and...
Encyclopædia Britannica, Inc.
first three harmonic standing waves in a stretched string
Figure 4: The first three harmonic standing waves in a stretched string....
Encyclopædia Britannica, Inc.
first 10 notes in the overtone series of G2
Figure 5: The first 10 notes in the overtone series of G2....
Encyclopædia Britannica, Inc.
first three harmonic standing waves in open and closed tubes
Figure 6: The first three harmonic standing waves in (left) open and...
Encyclopædia Britannica, Inc.
Helmholtz resonator
Figure 8: A classic Helmholtz resonator with volume V and with a neck of...
Encyclopædia Britannica, Inc.
Fourier synthesis of a complex wave
Figure 9: Fourier synthesis of a complex wave.
Encyclopædia Britannica, Inc.
lightning and thunder
(Top) As shown in the chart, the elapsed time between seeing a flash of lightning...
Encyclopædia Britannica, Inc.
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